A recent article by Cashmore (1) addressed the ways in which the criminal justice system might be affected by not recognizing free will. The Oxford philosopher Bradley (2) examined this issue from a Darwinian perspective over 100 years ago. Like Cashmore (1), he found that the nonexistence of free will undermined …

Bacteria could help tackle the growing mountains of e-waste that plague the planet. Although researchers are a long way from optimizing the approach, some are already confident enough to pursue commercial ventures.

Holographic acoustic tweezers, in which ultrasonic waves produced by arrays of sound emitters are used to individually manipulate up to 25 millimeter-sized particles in three dimensions, could be used to create 3D displays consisting of levitating physical voxels.